"The spread of civilization may be likened to a fire; first, a feeble spark, then a flickering flame, then a mighty conflagration, fiercely glowing and devouring."

"Electric power is everywhere present in unlimited quantities and can drive the world's machinery without the need of coal, oil, gas, or any other of the common fuels."

"The day science begins to study non-physical phenomena, it will make more progress in one decade than in all the previous centuries of its existence. To understand the true nature of the universe, one…"

"Insufficient observation is only a form of unknowing, a cause of many perverse incidents and a triumph of crazy ideas."

"I have not married, so that I may devote myself entirely to my work."